{"product_id":"square-d-d221n-30a-2p-240v-safety-switch","title":"Square D D221N 30A 2P 240V Safety Switch, NEMA 1, Fusible | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D D221N 30A 2P 240V Safety Switch is a rugged indoor disconnect designed to reliably isolate equipment at the point of use. With a fusible design and a two‑pole configuration, this switch combines protection and control in a compact package, making it a smart choice for both new installations and retrofit projects where keeping the exact part number is important for maintenance planning.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this safety switch matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConsolidates power isolation and overcurrent protection in one durable unit, simplifying wiring and maintenance.\u003c\/li\u003e \u003cli\u003eFusible design provides rapid, predictable protection and easy servicing when fuses are replaced or renewed.\u003c\/li\u003e \u003cli\u003ePreserves a consistent part number (D221N) for retrofit projects, reducing inventory confusion and downtime during replacements.\u003c\/li\u003e \u003cli\u003eDesigned for indoor use with a NEMA 1 enclosure, suitable for clean, protected environments typically found in control rooms, machine rooms, and service areas.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBrand: Square D\u003c\/li\u003e \u003cli\u003ePart Number: D221N\u003c\/li\u003e \u003cli\u003eProduct Type: Safety Switch\u003c\/li\u003e \u003cli\u003eAmperage: 30 A\u003c\/li\u003e \u003cli\u003ePoles: 2\u003c\/li\u003e \u003cli\u003eVoltage: 240V\u003c\/li\u003e \u003cli\u003eEnclosure: NEMA 1 (indoor, basic protection)\u003c\/li\u003e \u003cli\u003eFusible: Yes\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEquipment disconnect at the point of use for motors, conveyors, pumps, or other electrical gear.\u003c\/li\u003e \u003cli\u003eRetrofit projects where maintaining the same part number simplifies spare parts planning and service visits.\u003c\/li\u003e \u003cli\u003eMaintenance planning scenarios that require predictable shutdowns with integrated fusing for added protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho benefits from the D221N\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilities managers coordinating upgrades or replacements in protected indoor environments.\u003c\/li\u003e \u003cli\u003eElectrical contractors and maintenance electricians who value a reliable, consistent disconnect option.\u003c\/li\u003e \u003cli\u003eOperations teams seeking a straightforward, standards-based safety switch to minimize downtime during servicing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSupport and compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAmpState offers this NEMA 1 fusible safety switch in the D221N model, with help available to confirm compatibility and fit. If you’re unsure about exact compatibility with your panel or circuit, you can message AmpState for guidance and to verify that the D221N matches your requirements.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical installation and usage tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePlan for indoor placement within reach of service personnel while ensuring clear access for safe operation.\u003c\/li\u003e \u003cli\u003ePair with appropriate 240V circuits and wiring methods that match the 30A, 2‑pole configuration.\u003c\/li\u003e \u003cli\u003eWhen retrofitting, leverage the consistent D221N part number to simplify ordering and replacements down the line.\u003c\/li\u003e \u003cli\u003eSchedule routine inspections of the fusible elements and enclosure to maintain reliability and safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410877173922,"sku":"D221N","price":306.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-d221n-30a-2p-240v-safety-switch-nema-1-fusible-ampstate-252.webp?v=1788982964","url":"https:\/\/www.ampstate.com\/products\/square-d-d221n-30a-2p-240v-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}